Orbit Fit and Astrometric record for 612575

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 612575    
# Created Sun Nov 24 02:07:41 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     56 observations of     56
# Arc:  21.02y
# First observation: 2003/08/25
#  Last observation: 2024/08/30
# Chi-squared of fit:   255.97 DOF:    106 RMS:  0.38
# Min/Max residuals:    -0.96    1.50
# Exact a, adot, b, bdot, g, gdot:
  2.030468E-05  2.908523E-02  2.140366E-06  1.666864E-03  2.530827E-02 -5.334741E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.411353  -48.510067   -0.345364    0.040211   -0.953778  2452876.630013
# Heliocentric elements and errors
Epoch:              2452876.5000  =  2003/08/25
Mean Anomaly:          347.36228 +/-     0.000
Argument of Peri:       69.54743 +/-     0.000
Long of Asc Node:      276.13515 +/-     0.000
Inclination:             4.01677 +/-     0.000
Eccentricity:         0.42719993 +/-    0.0000
Semi-Major Axis:     67.10157971 +/-    0.0000
Time of Perihelion: 2459924.4629 +/-       0.0
Perihelion:          38.43578962 +/-    0.0000
Aphelion:            95.76736981 +/-    0.0000
Period (y)              549.6767 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.04248962 +/-    0.0000
Ecliptic Y          -30.05383954 +/-    0.0000
Ecliptic Z            1.66252419 +/-    0.0000
Ecliptic XDOT         0.00196464 +/-    0.0000
Ecliptic YDOT         0.00251636 +/-    0.0000
Ecliptic ZDOT         0.00015605 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.46360858 +/-    0.0000
Geocenter to KBO     39.51295304 +/-    0.0000
# Hcoef:  7.19

The following table shows the complete astrometric record for 612575. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (612575) followed by the observatory code and reference code for the source of the astrometry.

2003 08  25.12927  20 53 02.29   -15 00 59.6   21.8R 612575    807  Ci4137      
2003 08  26.02489  20 52 58.36   -15 01 15.9         612575    807  Ci4137      
2003 08  26.12384  20 52 57.92   -15 01 17.7         612575    807  Ci4137      
2003 10  01.22477  20 50 56.45   -15 10 26.5   23.1R 612575    568  Ci6964      
2003 10  01.30181  20 50 56.29   -15 10 27.5         612575    568  Ci6964      
2003 10  02.22040  20 50 54.47   -15 10 37.4         612575    568  Ci6964      
2004 08  12.11446  21 00 31.29   -14 23 42.2   21.8R 612575    807  Cn7007      
2004 08  12.21694  21 00 30.79   -14 23 44.3         612575    807  Cn7007      
2005 06  09.24825  21 11 17.32   -13 33 29.0   22.5R 612575    304  Cn7007      
2005 06  09.28043  21 11 17.27   -13 33 29.3         612575    304  Cn7007      
2006 06  17.26905  21 17 31.78   -12 58 46.6   22.5R 612575    250  S~06Ad      
2006 06  17.33169  21 17 31.62   -12 58 47.0         612575    250  S~06Ad      
2006 06  17.33608  21 17 31.61   -12 58 47.0         612575    250  S~06Ad      
2006 06  17.34048  21 17 31.60   -12 58 47.1         612575    250  S~06Ad      
2007 09  11.23039  21 18 10.00   -12 47 47.6   22.5r 612575    695  Cv8575      
2007 09  11.29715  21 18 09.73   -12 47 48.9   22.6r 612575    695  Cv8575      
2008 06  07.34574  21 30 59.63   -11 44 17.3         612575    807  Cz1375      
2008 06  07.40408  21 30 59.54   -11 44 17.5         612575    807  Cz1375      
2008 09  24.176796 21 23 59.92   -12 15 07.4         612575    645  C~1PqY      
2008 09  24.177626 21 23 59.92   -12 15 07.4         612575    645  C~1PqY      
2008 09  24.180113 21 23 59.91   -12 15 07.4         612575    645  C~1PqY      
2011 07  22.46222  21 48 48.423  -09 54 49.46  23.9G 612575    F51  C~2r7B      
2011 07  28.49116  21 48 22.627  -09 56 46.66  22.8G 612575    F51  C~2r7B      
2011 08  31.40402  21 45 44.542  -10 09 51.48  22.9G 612575    F51  C~2r7B      
2012 08  13.41357  21 53 50.628  -09 22 10.50  23.0G 612575    F51  C~2r7B      
2012 08  13.42805  21 53 50.557  -09 22 11.12  23.2G 612575    F51  C~2r7B      
2012 08  13.45735  21 53 50.429  -09 22 11.67  23.3G 612575    F51  C~2r7B      
2013 05  20.60265  22 04 00.788  -08 28 29.27  22.8G 612575    F51  C~2r7B      
2013 06  20.55713  22 03 48.973  -08 26 30.26  23.0G 612575    F51  C~2r7B      
2013 08  12.44815  22 00 41.436  -08 40 15.26  23.0G 612575    F51  C~2r7B      
2013 08  12.46368  22 00 41.344  -08 40 15.83  22.4G 612575    F51  C~2r7B      
2013 08  12.47870  22 00 41.259  -08 40 16.14  22.7G 612575    F51  C~2r7B      
2013 08  12.49366  22 00 41.213  -08 40 16.23  22.6G 612575    F51  C~2r7B      
2013 11  25.23963  21 56 15.842  -09 08 39.74  23.3G 612575    F51  C~2r7B      
2014 06  26.56392  22 10 17.957  -07 45 14.89  22.9G 612575    F51  C~2r7B      
2014 06  28.53114  22 10 13.646  -07 45 28.44  23.1G 612575    F51  C~2r7B      
2014 07  06.59602  22 09 52.742  -07 46 44.36  23.7G 612575    F51  C~2r7B      
2014 07  25.55617  22 08 46.360  -07 51 35.52  22.7G 612575    F51  C~2r7B      
2014 08  20.43718  22 06 50.473  -08 01 21.77  23.0G 612575    F51  C~2r7B      
2014 08  27.42195  22 06 17.385  -08 04 20.72  22.9G 612575    F51  C~2r7B      
2014 09  02.37237  22 05 49.502  -08 06 55.18  22.7G 612575    F51  C~2r7B      
2014 09  16.34607  22 04 47.217  -08 12 52.84  23.3G 612575    F51  C~2r7B      
2015 06  25.57429  22 17 01.074  -07 02 47.97  23.1G 612575    F51  C~2r7B      
2015 06  27.59775  22 16 57.129  -07 02 58.92  23.2G 612575    F51  C~2r7B      
2015 07  28.50287  22 15 19.989  -07 09 49.57  22.7G 612575    F51  C~2r7B      
2015 08  21.41983  22 13 32.995  -07 19 02.02  22.8G 612575    F51  C~2r7B      
2015 09  09.39621  22 12 04.297  -07 27 20.26  22.2G 612575    F51  C~2r7B      
2015 12  01.22952  22 09 35.463  -07 46 27.34  22.8G 612575    F51  C~2r7B      
2016 07  06.56505  22 23 16.202  -06 21 22.44  23.3G 612575    F51  C~2r7B      
2016 07  11.52256  22 23 02.166  -06 22 18.36  23.5G 612575    F51  C~2r7B      
2016 08  03.48106  22 21 37.255  -06 28 58.13  23.4G 612575    F51  C~2r7B      
2019 09  04.223770 22 39 37.053  -04 29 35.44  22.9G 612575    G37  C~3cWO      
2019 09  04.296120 22 39 36.709  -04 29 37.52        612575    G37  C~3cWO      
2019 09  04.343930 22 39 36.489  -04 29 38.93        612575    G37  C~3cWO      
2024 08  30.372320 23 13 55.640  -00 40 57.48  22.8G 612575    G37  C~8FmC      
2024 08  30.428970 23 13 55.397  -00 40 59.03        612575    G37  C~8FmC      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00    -0.37       0.00    -0.34
     2   0.0025      0.00    -0.23       0.00    -0.06
     3   0.0027      0.00    -0.20       0.00    -0.02
     4   0.1016      0.00    -0.20       0.00     0.05
     5   0.1018      0.00    -0.14       0.00    -0.14
     6   0.1043      0.00     0.03       0.00    -0.45
     7   0.9664      0.00    -0.24       0.00    -0.06
     8   0.9667      0.00    -0.30       0.00    -0.12
     9   1.7909      0.00    -0.96       0.00    -0.20
    10   1.7910      0.00    -0.68       0.00    -0.34
    11   2.8122      0.00     1.48       0.00     0.51
    12   2.8123      0.00     1.47       0.00     0.58
    13   2.8123      0.00     1.49       0.00     0.61
    14   2.8124      0.00     1.50       0.00     0.54
    15   4.0468      0.00    -0.07       0.00     0.13
    16   4.0470      0.00    -0.10       0.00     0.14
    17   4.7864      0.00    -0.54       0.00     0.23
    18   4.7865      0.00    -0.54       0.00     0.15
    19   5.0843      0.00     0.17       0.00     0.05
    20   5.0843      0.00     0.21       0.00     0.07
    21   5.0843      0.00     0.19       0.00     0.11
    22   7.9078      0.00    -0.10       0.00    -0.11
    23   7.9243      0.00    -0.37       0.00     0.13
    24   8.0172      0.00     0.09       0.00    -0.05
    25   8.9700      0.00     0.05       0.00     0.05
    26   8.9700      0.00     0.03       0.00    -0.23
    27   8.9701      0.00     0.23       0.00    -0.08
    28   9.7371      0.00    -0.31       0.00    -0.32
    29   9.8218      0.00    -0.28       0.00    -0.13
    30   9.9667      0.00     0.07       0.00    -0.04
    31   9.9667      0.00    -0.20       0.00    -0.23
    32   9.9667      0.00    -0.40       0.00    -0.19
    33   9.9668      0.00    -0.02       0.00     0.08
    34  10.2536      0.00     0.53       0.00     0.17
    35  10.8376      0.00    -0.29       0.00    -0.06
    36  10.8430      0.00    -0.20       0.00    -0.02
    37  10.8651      0.00    -0.39       0.00    -0.31
    38  10.9170      0.00    -0.07       0.00    -0.05
    39  10.9878      0.00     0.04       0.00     0.03
    40  11.0070      0.00    -0.03       0.00    -0.10
    41  11.0233      0.00     0.24       0.00    -0.14
    42  11.0615      0.00     0.32       0.00    -0.15
    43  11.8342      0.00    -0.12       0.00    -0.03
    44  11.8397      0.00    -0.31       0.00     0.04
    45  11.9244      0.00    -0.38       0.00     0.17
    46  11.9898      0.00     0.13       0.00    -0.17
    47  12.0418      0.00     0.00       0.00    -0.09
    48  12.2686      0.00     0.26       0.00     0.05
    49  12.8664      0.00    -0.04       0.00    -0.16
    50  12.8799      0.00    -0.22       0.00     0.08
    51  12.9428      0.00     0.11       0.00    -0.11
    52  16.0276      0.00     0.15       0.00     0.23
    53  16.0278      0.00     0.17       0.00     0.17
    54  16.0280      0.00     0.28       0.00     0.10
    55  21.0164      0.00    -0.12       0.00     0.10
    56  21.0166      0.00     0.17       0.00     0.10

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

612575    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        68.079    68.079    68.080
ecceobj         0.436     0.436     0.436
incobj          4.014     4.014     4.014
qmin           37.720    37.752    37.741
qmax           99.371    99.330    99.496
amean          67.711    67.748    67.801
amin           66.803    66.865    66.940
amax           68.933    68.905    69.003
emean           0.430     0.431     0.431
emin            0.420     0.420     0.422
emax            0.442     0.442     0.443
imean           5.779     5.772     5.769
imin            5.511     5.510     5.495
imax            6.076     6.096     6.077
excite_mean     0.442     0.442     0.443
fracstop        1.000     1.000     1.000
cjmean          3.138     3.138     3.138

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       184.5     185.9     184.7
kozaiamp        179.9     180.0     180.0